def all_goods():
    goods = {"可口可乐":2.5,"百事可乐":2.5,"冰红茶":3,"脉动缤纷":3,"绿茶":3,"茉莉花茶":3,"尖叫":3,}
    return goods
def show_goods():
    count = 0
    for name,num in goods_dict.items():
        total_money = all_goods()[name] * num
        #总金额
        count += total_money
    print("需要支付金额:",count,"元")    
